Lake Pierce Nw
Lake Pierce Nw in Polk County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.6 ft visibility. Phosphorus: 45 µg/L.
- Clarity
- 1.6 ft
- Trend
- ↓ Declining
- Public access
- Yes
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Why Lake Pierce Nw has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Lake Pierce Nw, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity and phosphorus, but not algae (chlorophyll-a).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by FDEP and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Lake Pierce Nw is a lake in Polk County, Florida. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 2 public boat landings.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-07-10. Grade methodology: LakeQuality methodology.
Watch Lake Pierce Nw water quality
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Lake Pierce Nw
These readings exist but are not enough for an A–F grade — see why.
Very murky, less than 1.6 ft of visibility. Phosphorus level: 45 µg/L. Trophic State Index: 65.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.6 ft | Not graded |
| Phosphorus | 45 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 65 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Lake Pierce Nw
Compare lakeside cabins, hotels, and vacation rentals near Lake Pierce Nw in Polk County, Florida — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Lake Pierce Nw
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Planning a trip? Cabins and lodging at Lake Pierce Nw → · more Florida lake trips
Recreation & Access
- Lake Pierce Public Boat RampPublic
- Cherry Pocket Fish CampSemi-private
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Lake Pierce Nw
Water Quality Trend: ↓ Declining
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.026 m/yr | 6 |
| Phosphorus | → Stable | +0.39 µg/L/yr | 6 |
EPA Impairment Status
Lake Pierce Nw is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit FL1532 · Official waterbody report · Matched by proximity (2.03 km)
Graded lakes near Lake Pierce Nw
Lake Pierce Nw has no grade, but these lakes within a short drive do.
Nearby Lakes in Polk County
Frequently asked questions about Lake Pierce Nw
Where is Lake Pierce Nw?
- Lake Pierce Nw is a lake in Polk County, Florida. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Lake Pierce Nw?
- Lake Pierce Nw in Polk County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.6 ft visibility. Phosphorus: 45 µg/L.
Is Lake Pierce Nw safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Pierce Nw is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Are there boat ramps on Lake Pierce Nw?
- Lake Pierce Nw has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Lake Pierce Public Boat Ramp, Cherry Pocket Fish Camp. Public access is listed as yes.
Explore Lake Pierce Nw across LakeQuality
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Where this data comes from
8 measurements from 1 monitoring station, 2022–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples8 samples · 2022–2025
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Named boat-access points from the USGS National Boat Ramps inventory